Radiator for motor vehicles



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Sept. 25, 1923. v

A. P. WCLFE RADATQR FOR MOTOR VEHICLES 2 sheets-sheet 1 Filed sept. 2v. 1920 Sept. 25,1923.

A. P. WOLFE RADIATOR FOR MOTORYVEHICLES 1920 2 Sheets-Sheet 2 Filed Sept. 27

A TTORNE Y INVENTOR /I'ZZNI M/, 63

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Patented Sept. 25, i923.

BTHUR P. WOLFE, 0F PHILADELPHIA, FENNSYLVMA.

RADIATOR FOR MUTOB VEHICLES.

idpplication led September 27,' 1920. Serial No. 413,023.

To aZZ whom it may concern.'

Be it known that I, ARTHUR F. WoLrE, a citizen of the United States, residing at Philadelphia, inthe county of Philadelphia yand State of Pennsylvania, have invented This 'invention relates to radiators for` motor vehicles and has for its object to provide a construction which will be comparativelv less expensive to construct and ,more

l eiicient in actionv than those which.- have miV been heretofore proposed.

With these and other objects in view the invention consists in the novel details of construction and combinations of parts more fully hereinafterv disclosed and particularly pointed out in the claims.

Referringfto the accompanying drawings forming a part of this specification in which like numerals designate like parts in all the views: f n

Figure 1 is a diagrammatic front elevational view of a radiator provided with this invention; p

Figure 2 is an enlarged sectional view of one of the water tubes and ventiducts taken on the line 2-2 of Figure 6 looking in the direction of the arrows' Figure 3 is a view similar to Figure 2 taken on the line 3-3 of Figure 6 looking in the direction of thevarrows; Y

Figure 4 is a sectional view taken on the line 4-4 of' Figure 2 looking in the direction ofthe arrows;

' Figure 5 is an edge elevational view of a "water tube removed from the radiator;

Figure 6 is a side elevational view of the parts shown in Figure` 5;

Figure 7 is a. view similar toFigure 5 illstrating the opposite edge of the water tu e;

Fi re 8 is a perspective view artiall brokegiil away of the parts shownpin Figi-7 ure 6; y

Figiire 9 is aA sectional view similar to Figure 2 of a somewhat kmodified form of construction; and

Fi re 10 is a View similar to Figure 9 of a stil 'further modied form of construction.

l indicates the upper tank of a radiator for motor vehicles; 2 the lower tank thereof; and 3 a plurality of water tubes extendlng between the tanks 1 and 2 in the usual 60 manner. The tubes 3 are preferably ofthe cross section shown in Fig. 2, having the parallel sides t in its main body portion,

and the angularly disposed members 5 at each edge extending longitudinally of the @5 main body portion and forming the outer 'air channels 6 as shown. Extending from edge to edge of the extensions or members 5 on each side of the water tubes and resting on the members 5, are the corrugated plates '"10 'i' as illustrated. Said plates 7 are provided with the raised portions@ on one edge separated by the depressions 9, which touch the channel members 5 at the points 10 as illustrated. Said raised portions 8 are slanted te or sloped oft' to form the portions 11, terminating in the latter portions 12 which join the curved portions 13. terminating in the 'dome or dat portions 14, while said por- I tions 14 slope off into the curved portions s@ 15 similar to the portions 11 and the latter portions terminate in the flat orv depressed portions 16 of the plate, all as will be clear from Figures 2 and 9 of the drawings. 0n each side of a given dat portion 12 is a es raised or corrugated portion 17 which is located between the domes 14 and the raised portions 8, and which constitute a row of open ended corrugations spaced between said members 8 and 14, ,and staggered in reso lation thereto, as best illustrated in Figure 6. ln the same way on each side of a glven dat portion 16'is disposed open ended corrugations 18' which constitutejanother row of corrugations extending along the length ce of the tube and which are staggered in relation to the said members Sand 14. y

Between the domes 14 there is provided the depressions 20 which constitute a (hannel Way between the corrngations 17 and 18. tot l The parallel channel portions 4 of the tubes 3 are provided with numerous fine points or heat radiating projections. 21'so that a current of air indicated by the arrows Y 22 entering an openino 23 of a projection 8 will be deflected by the curved portion 11, down into contact with said projections 21 and thus will absorb an increased quantity of heat. Said currents of 'air 22 will likewise be dedected upwardly against the inner tile surfaces of the curved portion 13 oi the dome l14:, as best illustrated in Figure 2i? whereupon the curved portion 15 of said dome 14 will cause said air to divide asl at the point 27 and a portion 28 thereof to escape through one corrugation 18, while another portion 29 thereof will escape through an adjacent corrugation 18 on the opposite side of a depression 16, all as will be clear kfrom the arrows illustrated in Figures 2, 4, and 6. Tn the same way another portion 25 of the air current 22 will be delected to one side by the curved portion 11 and find its way into an adjacent corrugation 17 where it will join with the current of air 26 entering said corrugation 17 over a depressed ortion 9 and the two currents of air thus fiirmed will proceed through t-he corrugation 17 over the space or channel 20, as is indicated by the arrow 30 in Figure 4.` From the channel 20 the currents of air thus produced will proceed through the corrugations 18 and will join with the currents 28 heretofore mentioned.

lln addition to this, the air currents 26' passing over the depressions 9 and passing lintoytbe corrugatios 17 will be deflected laterally of the tubes 3 asindicated by the arrows 31 and 32 in Figure 6. They will thereupon -join with the currents of air 22, already in the domes 14 above described, and will intermingle with the other currents of air present. Y f

Stated in other language, it is very clear' that if we suppose the vehicle to be traveling in the direction of the arrows 33 in Figures 2 and 3 air enterinor the corrugations 8 will be deiected laterally of the tubes Band against the heat radiating projections 21, all as above stated.- Tn the same way air entering the corru ations 17 over the de ressions 9 will likewise be' defiected later-- al y of said tubes 3 and thrown into contact with said heat radiating depressions 21.

Again, air entering-the corrugations 18 will pass through the vopenings 35, will join the air already .in said corrugations, and serve to cool the tubes 3 by contact with the channel members 5, all as will be clear from the drawings.

1n addition to this, what might be termed internal air, there will be a considerable portion of external air which will wind in and out among the corrugations 8, 17, and 18, balloting against .the domes 14 vand the depressions 9, 16, etc. This said last mentined air is illustrated diagrammatically b the arrows 36, Fi re 6, and it serves stil further to cool the parts and to keep up thepressure of the air against the radiating projections 21.

If we now analyze the action of the air just described and if we will look at a tube' from the left hand side as seen in Figures 2 and`6 we `.will observe that there are three projections or oorrugations 8, 17, and f18, which serveto conducty the airover the tube 3 to the right hand side thereof. 0n the othervhand, the fan, not shown, which is customarily used in motor vehicles will be located on the right hand side of said tube and will be constantly sucking air into the space there found, so that the air entering said space must find an outlet. Now, on lookingat the said tube 3 and the above mentioned corrugations from its right hand edge, as seen in Figures 2 and 6, we will observe at once that there are only the corrugations -18 'and 17 to conduct the air away. 1n other words, air which enters the corruvzgations 8 as indicated by the arrows 22 is caught by the dome shaped members 1,4 and is deflected on eachl side through the corrugations 18, which are already supplied by the` corrugations 17, and therefore when said air reverses itsV motion a greater or less resistance is encountered in the corrugations 18. lit results that there is a greater facility for the air to pass from left to right than there is for it to pass from right to left as seen in Figures'S/B and 6.' This construction just described, therefore, serves to facilitate the lateral movement ofthe air on the outside of and u and down or lengthwise of the tube 3. n practice it is found that thislateral movement is very considerable indeed and that, therefore, the said corrugations just mentioned which together with the tube 3, 'il prefer to call ventiducts,

are terminated short oi' the extreme `end 38 of the tubes 3 so as to ieave a considerable space'39 between said ends andthe ends of t e corrugations, all as will' be clear from figures 5, 6, and 7.

Tn addition to this forcing of the air to `travel longitudinally of the tube, and in addition tothe forcible deflection of the air to cross the tube by the disposition'of the corrug'ations described above, these said heat radiating projections 21 serve to impede lateral motion of the air along the tubes and thus to make its passage more turbulent than would otherwise be the case. Stated in other language the constructie just disclosed enables meto obtain a `large tube surface in contact with a relatively small bulk o f water, and to provide a very largeV corrugated ventiduct surface connected with the water tube surface and to so p0- sition thevarious parts that there is formed ythree distinctive tubes. `One of said tubes passage tube is concerned.` Although, of

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ascenso course, by placing two independent tubes in close junta-position l form between their contacting corrugated surfaces additional au passages such as are illustrated by the arrows in Fi re 6.

lt will now be clear that by the construction disclosed l employ a relatively small resistance to the transverse passage of the cool air while I give said air 'a very considerable whirling or turbulent motion so Vthat it becomes thoroughlymixed during its pas sage transversely of the tubes 3 and it beconnes violentlyr dedected against said tubes at every point of its passage and throughout their entireV length, although the draft of the air suction fan, not shown will not cover the entire length'of said tu s. The result is that the'entire volume of the air is practically of the same temperature throughout and all superheated stratus and columns of air that are frequently found in other cooling apparatus employing separate air passages are avoided:

ln the somewhatjmodied form of the in vention illustrated in Figure 9, the operation and construction' is substantially the same as,

that heretofore disclosed, except that the cross section of the tubeI-.l is of sul-shape instead et the shape shown in Figure 8. The ll is termed by ma-lng the members 5 oi Figure 8 uprightto form the members d() as shown. therwise, the construction and operation is, or ina-y be, the same as that disclosed above.

ln a still further modied form of the inrention illustrated in Figure l0, the tube 3 is formed dat throughout so that neitber'of the members 5 nor d() appear therein.

lt will now be clear that each of thewater tubes 3 and their associated corruga tions constitute aconstruction which con-l sists essentially of both a water tube and self-contained heat radiating ns combined with air tubes on each side of the water tube extending lengthwise thereof. Not only this, but in all the forms except those illustrated in Fi res 9 and 10 there is an additional air, c annel 6 alonglwhich air passes and which serve to pro uce a very considerable cooling edect. v A #lt is an important feature of the invern tion that/the ventiduct plates in each iator unit consisting of a tube and a pair of said pl :1 Z are so formed that all currents of air' crossing a given tube mut harasJ portion thereof'detlected longituinally of the tube and .a portion the et? deileed transversely of the tube(v and ot the line of travel of said air as is best shown in Figs. 2 and 6. This invention' is especially adaptedfor use on motor trucks.

lt is obvious that those skilled inthe art kmay vary the details of construction as well as the arrangement of from' the spirit o the invention, and

, sides thereof `air dinall oi said tube, substantially as de-` parte without depart-- therefore l do not wish to be limited to the above disclosure except as may be required by the claims.

What l claim is:

l. ln a radiator -the combination ot a water tube comprising a flattened portion and angularly dis osed extensions at each edge thereof; an a corrugated plate of sheet material secured to the exterior of said tube and spaced therefrom to form au air passage extending longitudinally of said tube, substantially as described.

E?. ln a radiator the combination of a water tube having a dat like cross section and angularly disposed extensions running longitudinally of said tube at each side; and a pair of corrugated plates rigid with the outside of said tube and forming with the passages disposed longituscribe 3. A. radiator unit composed of a complete water tube comprising separated angularl disposed extensions running longitudinally of said tube at each side; and heat radiating inea-ns rigid therewith on the outside of said tube and forming air passages disposed longitudinally of said tube, substantially as described.

et. ln a radiator the combination of a water tube of a dat cross section having a. tubular extension at each edge; and a pertorated and corrugated sheetassociated with said tube and rigld with said extensions to `torna air passages disposed longitudinally vand transversel of saidy tube, substantially as described.

5. ln aradiator the combination of a water tube dat in cross section and having a plurality of angularly disposed tubular extensions at each edge; and a plurality of perforated and corrugated sheets spanning a pair of said extensions on each side of the tube to torno longitudinal and transverse air passages, substantially as described.

6.. lu a radiator the combination of a water tube ldat in cross section having a plurality of angularly disposed tubular extensions on each edge forming longitudinally disposed air channelsbetween them;

and a perforated and corrugated plate associated witheach pair of said extensionsy to form on the outside of said vtube transverse and longitudinal air passages, substantially as described7 7. En a radiator the combination cfa dattened water tube; and a plate corrugated transversely with respect tosaid water tube and s aced therefrom to form on the outside of said tube an uninterrupted air passage disposed longitudinally of. said tube and havin perorations stared in relation to eac other to form a purality of air passages disposed transversely of said tube, substantially as described` roo transverse air passages, substantially as described.

9. In a radiator' the combination of a water tube; and a sheet of metal secured thereto and spaced therefrom; said sheet provided with a plurality of rows of per-` forated corrugations sta gered in relation to each other; and a p urality of domes adapted to deflect the air onto said tube; substantially as described.

10. In a radiator the combination of a water tube flat in cross section and havin a plurality of tubular extensions and provi ed with heat radiating projections; and a plurality of perforated and corrugated sheets terminating short of one end of said tube and spanning said extensions to-form longitudinal and transverse air passages, substantially as described.

11. In a radiator the combination of a water tube; and a corrugated Dlate of a shorter length` thanV said tube; said plate` spaced therefrom to form a longitudinal air' assage and having perforations staggered- -m relation to eachother to form a plurality of` transverse air passages; and said tube provided with heat'radiating surfaces, substantially as described.v

`12.' In -a radiator the combination of a pluralit of water tubes each provided with angular y disposed extensions running longitudlnall of said tube; aplurality of corrugated s eets'associated with each tube and spanning said extensions to form longitudinal air passages on the outsides of said tube; land a'water tank with which said tubesV are connected, substantially as described.

13. In a radiator the combination of a plurality of flattened water tubes provided with flattened extensions; a plurality of corrugat'ed sheets shorter than and associated with each tube and spaced therefrom on the outside of said. tubes to'form longitudinal air passages; and 'a water tank with which said tubes are connected, substantially as described,l

1'4. In a radiator the combination of upper and lower water tanks; a plurality of water tubes,A connecting said tanks and provided withan larly disposed extensions running longitudinally of said tube; and a plurality of corrugated and perforated plates secured-to each extension and spaced from said tubes to form air passages, substantially as described.

In testimony whereof I ax my signature.

ARTHUR P. WOLFE. 

